12738358080 has 280 divisors, whose sum is σ = 51786544128. Its totient is φ = 2911583232.

The previous prime is 12738358067. The next prime is 12738358121. The reversal of 12738358080 is 8085383721.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 146337 + ... + 216543.

Almost surely, 2^12738358080 is an apocalyptic number.

12738358080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12738358080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25893272064).

12738358080 is an abundant number, since it is smaller than the sum of its proper divisors (39048186048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12738358080 is an equidigital number, since it uses as much as digits as its factorization.

12738358080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70243 (or 70224 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 12738358080 in words is "twelve billion, seven hundred thirty-eight million, three hundred fifty-eight thousand, eighty".